26499420 has 96 divisors (see below), whose sum is σ = 85155840. Its totient is φ = 6834240.

The previous prime is 26499419. The next prime is 26499457. The reversal of 26499420 is 2499462.

26499420 is a `hidden beast` number, since 2 + 649 + 9 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15949 + ... + 17531.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^26499420 is an apocalyptic number.

26499420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26499420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42577920).

26499420 is an abundant number, since it is smaller than the sum of its proper divisors (58656420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26499420 is a wasteful number, since it uses less digits than its factorization.

26499420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 26499420 is about 5147.7587356052. The cubic root of 26499420 is about 298.1344227867.

It can be divided in two parts, 2649 and 9420, that multiplied together give a triangular number (24953580 = T₇₀₆₄).

The spelling of 26499420 in words is "twenty-six million, four hundred ninety-nine thousand, four hundred twenty".